| John Plantagenet of Gaunt K.G., D. of Aquitaine & Lancaster, etc. (1340 - 1399) |
Thomas de Holand Knt., K.G., 2nd Earl of Kent, etc. (~1351 - 1397) |
| Katherine de Roet (Swynford) Duchess Lancaster (~1350 - 1403) |
Alice de Arundel (1352 - 1415) |
| John Beaufort Knt., K.G., 1st E. of Somerset | Margaret Holand |
| b. abt 1371, Pottersgate, Lincolnshire, England d. 21 Apr 1409/1410, St. Katherine By The Tower Hospital, London, England bur. St. Michael's Chapel, Canterbury Cathedral, Canterbury, Kent, England occ. cen. im. . ud. |
b. abt 1383 d. 30 Dec 1439, St Saviour's Monastery, Bermondsey, Surrey, England bur. Cathedral, Canterbury, Kent, England occ. cen. im. . ud. |
| Spouses: 1, 2, 3 |
| Margaret Beaufort Henry Beaufort 2nd Earl of Somerset John Beaufort K.G., 3rd Earl of Somerset, etc. Edmund Beaufort K.G., Duke of Somerset, etc. |